{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "IT MK - 801 significantly reduced the number of dark - stained alpha - motoneurons after morphine - induced spastic paraparesis compared with the saline group ."}
{"Chemical": ["MK - 801", "morphine"], "Disease": ["spastic paraparesis"]}